Datasets of monthly reference agrohydrological variables for the rainfed agricultural region of Ethiopia (Ethio-AgHy)

Summary

The Ethio-AgHy reference agrohydrological dataset was developed using a modeling framework that integrates climate, soil, land use, and topographic data to simulate water balance components within the upper 60 cm soil layer of agricultural lands across Ethiopia. The database includes climatologies of the following variables:

Monthly mean and standard deviation (std) of actual evapotranspiration, ETa [mm/month]

Monthly mean and standard deviation (std) of reference evapotranspiration, ETo [mm/month]

Monthly mean and standard deviation (std) of surface runoff, RO [mm/month]

Monthly mean and standard deviation (std) of volumetric soil moisture, SMv [m^3/m^3]

Monthly mean and standard deviation (std) of soil moisture deficit, SMD [%]

Monthly mean and standard deviation (std) of soil aeration deficit, SAD [%]

Annual mean and standard deviation (std) of waterlogging intensity, WLI [days/year].

For each variable with a monthly climatology, data are stored in a single GeoTIFF file containing 12 bands, each representing one calendar month (January to December). In the metadata, months are abbreviated as: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec. The waterlogging intensity (WLI) dataset, being annual, is provided as a single-band GeoTIFF. 

The datasets cover the rainfed agricultural regions of Ethiopia, bounded by latitudes 4.445° N - 15.046° N and longitudes 32.852° E - 44.085° E. Data are provided on a 500 m × 500 m spatial grid (2120 rows × 2250 columns). Grid indexing starts from the north, and cells with no data are assigned NaN values. All datasets are provided in the WGS 84 geographic coordinate system (EPSG:4326).

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